"I really think that he is wearing a denture and that denture is either ill fitting or it is slipping out of his mouth and that is causing his slurred speech," Dr. Nancy Rosen, a dentist in New York City, told Inside Edition.

Over the years, Trump’s teeth have gone from slightly crooked when he was a young tycoon to perfectly straight and blindingly white. According to one report his real teeth are covered with porcelain veneers to create that smile.

"If they are glued on properly, they should really be staying in place, but most of the time people do not have slurred speech from veneers," Dr. Rosen said.

The White House says his garbled speech was nothing more than a case of “dry mouth” and that his “throat was dry,” and added, "There is nothing to it."

Dry mouth is an actual medical condition that affects many Americans as they age.